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Iranian Journal of Fuzzy Systems، جلد ۷، شماره ۳، صفحات ۱۲۹-۱۵۷
عنوان فارسی SOME PROPERTIES OF FUZZY HILBERT SPACES AND NORM OF OPERATORS
چکیده فارسی مقاله In the present paper we define the notion of fuzzy inner productand study the properties of the corresponding fuzzy norm. In particular, it isshown that the Cauchy-Schwarz inequality holds. Moreover, it is proved thatevery such fuzzy inner product space can be imbedded in a complete one andthat every subspace of a fuzzy Hilbert space has a complementary subspace.Finally, the notions of fuzzy boundedness and operator norm are introducedand the relationship between continuity and boundedness are investigated. Itis shown also that the space of all fuzzy bounded operators is complete.
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عنوان انگلیسی SOME PROPERTIES OF FUZZY HILBERT SPACES AND NORM OF OPERATORS
چکیده انگلیسی مقاله In the present paper we define the notion of fuzzy inner productand study the properties of the corresponding fuzzy norm. In particular, it isshown that the Cauchy-Schwarz inequality holds. Moreover, it is proved thatevery such fuzzy inner product space can be imbedded in a complete one andthat every subspace of a fuzzy Hilbert space has a complementary subspace.Finally, the notions of fuzzy boundedness and operator norm are introducedand the relationship between continuity and boundedness are investigated. Itis shown also that the space of all fuzzy bounded operators is complete.
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نویسندگان مقاله عباس حسنخانی |
department of mathematics, shahid bahonar university of kerman, kerman, iran
سازمان اصلی تایید شده: دانشگاه شهید باهنر (Shahid bahonar university)

اکبر نظری |
department of mathematics, shahid bahonar university of kerman, kerman, iran
سازمان اصلی تایید شده: دانشگاه شهید باهنر (Shahid bahonar university)

مرتضی ساحلی |
department of mathematics, vali-e-asr university of rafsanjan, rafsanjan, iran

نشانی اینترنتی http://ijfs.usb.ac.ir/article_196_0e9bc69f70cca84530a0ad485e65cabb.pdf
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